def __init__(self, name=None, id=None, packet_context_field_class=None,
event_header_field_class=None, event_context_field_class=None,
event_classes=None):
def __init__(self, name=None, id=None, packet_context_field_class=None,
event_header_field_class=None, event_context_field_class=None,
event_classes=None):